$($Related to Checkpoint $9\mathrm{.}2$ and Checkpoint $9\mathrm{.}3)($Bond valuation relationships$)$ The $14-$year, $$1,000$ par value bonds of Waco Industries pay $11$ percent interest annually. The market price of the bond is $$855,$ and the market's required yield to maturity on a comparable$-$risk bond is $15$ percent.

a$.$ Compute the bond's yield to maturity.

b$.$ Determine the value of the bond to you given the markef's required yield to maturity on a comparable$-$risk bond.

c$.$ Should you purchase the bond?